Chlorpyrifos, 100 µg/ml, Acetonitrile, 5ml Back Catalog number: 675397 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 8648.12-50-T 1,2,4,6,7-Pentachlorodibenzo-p-dioxin, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. Price on request 3868.9-K-ME Coumarin-d4, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 185056-83-1 Price on request N-12147-100MG Heptachlor, 100mg Price on request